Senior Principal Architect - Network and Zero Trust

We are seeking a Senior Principal Architect to own the Network and Zero Trust domain as design authority for GSK. You will be part of a small team, working closely with a Principal Architect and a Senior Principal Architect, to design and build a Zero Trust framework from scratch.

Key Responsibilities:

• Act as design authority for Network and Zero Trust architecture across GSK
• Own the Zero Trust policy framework: device trust, identity trust, and application access policy
• Own network segmentation and micro-segmentation standards across the estate
• Own SASE and SD-WAN security architecture, secure remote access design, and DNS security architecture
• Produce architecture specifications that Solution Engineering builds from without reinterpretation
• Maintain the Network and Zero Trust reference architecture library
• Reject network and Zero Trust tooling that cannot express policy as code, integrate with the existing identity provider, or be operated by the managed service without Cyber Architecture and Solutions present

Requirements:

• 15+ years in network security architecture
• Experience designing Zero Trust from the ground up
• Knowledge of network segmentation and micro-segmentation standards, SASE and SD-WAN security architecture, secure remote access, and DNS security
• Ability to produce specifications that a separate engineering team builds from without rework
• Experience with Zero Trust architecture for AI workloads and agents

Preferred Qualifications:

• Recognised architecture certification such as SABSA or TOGAF
• Experience with Zero Trust programme at enterprise scale
• Regulated industry experience, including GxP environments
• Technical evaluation of new network and Zero Trust tool proposals against the architecture model